---The panda is a kind of animal _______ I like best.
| A．who | B．which | C．where | D．what |
Not only his parents but also his brother _____ to the Summer Palace. They haven’t been back.
| A．have been | B．have gone | C．has been | D．has gone |
Tell me everything _____ you know.
| A．which | B．where | C．whose | D．that |
I have many hobbies, _______collecting stamps, playing football and so on.
| A．such as | B．for example |
| C．that is to say | D．in fact |
I wonder if he tonight. If he, I’ll let you know.
| A．will come; will come | B．comes; comes |
| C．will come; comes | D．comes; will come |
- The air pollution is terrible.
- It will be worse ________ we take action to protect the environment.
| A．if | B．unless | C．until | D．when |